Plate glass mounting



Dec. 31, 1935. H. E. NAISULER PLATE GLASS MOUNTING Filed Nov. 5, 1934 INVENTDR Harry E.Na isu,Ler

ATTORNEY fiatented Dec. 31, 1935 UNITED STATES PATENT OFFICE PLATE GLASS MOUNTING Harry Naisuler, Whitman, Mass. Application November 5, 1934, Serial No. 751,485

10 Claims.

This invention relates to plate glass mountings, and more particularly to fastening or clamping means for windows in store front, display window, door, sash, show case, and the like constructions.

It is common practice in the store front construction art, for example, to employ a pair of cooperating clamping members, usually of metal, for clamping in place large sheets of plate glass. The clamping members are usually drawn together into clamping engagement with the glass by means of a plurality of bolts or screws extending therethrough at spaced points therealong and normal to the plane of the glass sheet, although in some cases the bolts or screws have been otherwise disposed, and in some cases even concealed. So far as I am aware, however, constructions of the latter type have been relatively complicated and characterized by a relatively great number of moving parts. The primary object of my invention, therefore, is to provide an improved store front construction of the concealed screw type which is free from the objections present in prior art constructions of this type.

Another object of my invention is to provide an improved store front construction of the aforesaid type which has a minimum number of moving parts.

Still another object of my invention is to provide an improved store front construction of this type which firmly and securely clamps the glass in place without suffering appreciable distortion or endangering the safety of the glass.

A further object of my invention is to provide an improved store front construction, of the type specified which can be easily, speedily and accurately set up even by an unskilled worker.

Still a further object of my invention is to provide an improved store front construction of the type mentioned which is free from any unsightly or dangerous projections, abutments, openings for the collection of dirt and moisture, etc.

It is also an object of my invention to provide an improved store front construction which is capable of fine degrees of clamping adjustment.

Still another object of my invention is to provide an improved store front construction which, although very strong and durable, is, nevertheless, economical of manufacture and highly efficient in use.

In accordance with my invention, I provide the back clamping member with a swivelly-mounted block in which is threaded a screw, and a cam surface which the lower end of the screw engages,

the screw passing through an opening in a rearwardly extending flange on the front clamping member in engagement with the rear edge defining the opening. As the screw is turned in the threads of the block toward the flange, the cam surface exerts a camming action against the end thereof forcing it rearwardly about the block pivot and thus causing it to draw the front clamping member toward the back one.

The novel features which I consider characteristic of my invention are set forth with particularity in the appended claims. The inven-- tion itself, however, together with additional objects and advantages thereof, will best be understood from the following description of several embodiments thereof, when taken in connection with the accompanying drawing in which Figure 1 is a sectional view of one form of my invention,

Figure 2 is an exploded, perspective view thereof showing the relation of the various parts, and

Figure 3 is a sectional view of a slightly modified form of back clamping member.

Referring more in detail to the drawing, in which similar reference characters designate corresponding parts throughout, I have shown, in Figures 1, 2, and 3, a sash comprising a front clamping member I and a back clamping member 2 supported on a sill or other suitable support 3 and in clamping engagement with a pane of glass 4. The front clamping member I may be encased in a suitable sheathing 5 of any desired configuration and the back clamping member 2 in a suitable sheathing 6, the back clamping member 2 and its sheathing 6 being fixedly supported on the sill or the like 3 against a riser or similar member I on the sill 3 by means of screws or equivalent devices 8, and the pane of glass 4 being contacted by the downwardly extending flanges 9 and II) of the sheathings 5 and 6, respectively.

The front clamping member I is provided with a forwardly extending substantially U-section II having a beveled portion I2 for a purpose hereinafter described, and with a rearwardly extending flange I3 having an opening I4 therein. The back clamping member is provided with an inclined cam surface I5 which extends downwardly away from the front clamping member I and terminates, at its upper portion I5, in a horizontal surface I6 which supports the flange I3. Forwardly of the horizontal surface I6, the back clamping member 2 extends downwardly at I! and has a flange I 8 extending forwardly from the portion H, the flange I8 being spaced from the lower or base portions of the sheathing 5 a distance. suflficient to accommodate the base IQ of the U-section II.

The top, forwardly extending portion 20 of the back clamping member 2 is provided with an aperture 2! just large enough to fairly receive a block or nut 22 having a screw threaded opening 23 therein for accommodating a screw or bolt 24. A pair of recesses 25 communicating with the aperture 2| receive and serve as bearings for diametrically opposed pins 26 on the block 22. By reason of the cylindrical side walls 21 on the block 22, the block is adapted to swivel or pivot on the pins 26 when inserted into the aperture 2i with the pins 26 resting in the recesses 25.

The clamping device is assembled and-operated as follows: First, the screw 25 is threaded in the block 22 nearly as far as it will go, and the block 22 is inserted in the aperture 2| through the top until its pins 26 rest in the recesses or bearings 25. The upwardly directed edge 28 of the back clamping member 2 is then inserted in the corresponding corner 29 of the sheathing Ii, after which the member 2 is pushed backwardly until the back thereof fits against the back of the sheathing 6. The pins 26 thus become confined between the recesses 25 and the top of the sheathing 6 with the block 22 extending up partly through the aperture 30 in the sheathing 6, the block being, however, free to swivel about the pins 26 and the screw 24 being free to move vertically toward and away from the cam surface I5. If desired, the bottom of the sheathing B may be sprung up against the bottom of the incline or cam I5, as at 3| (Fig. 3) whereupon the member 2 becomes locked to the sheathing IS, and the member 2 and its sheathing 6 are then secured to the riser I by the screw 8.

The front clamping member is then placed within the sheathing 5 by first inserting the uppermost edge 32 thereof behind the flange 9 and then urging the U-section II into the corresponding section of the sheathing I, this being possible by reason of the incline I2. The clamping member I is then sill 3 substantially in the manner shown in Figure 1 with the base I9 beneath the flange I8, so that the clamping member I cannot be moved upwardly out of place, and with the flange I3 resting on the horizontal supporting portion IS, the screw 24 having first been withdrawn to a point where its end 21 is above the flange I3. The glass pane I is then placed on the flange I3, after which the screw 2G is advanced in the block 22 until its end 24 passes through the opening It and engages the incline or cam I5. Upon furtheradvance of the screw 26, it is caused to move rearwardly into engagement with the rear edge 53 of the opening I4 under the influence of the cam I5 whereupon the front clamping member I is drawn toward the back clamping member 2 to cooperate therewith in clamping the pane of glass firmly in place. Obviously, the clamping forces applied by the members I and 2 may be controlled through fine degrees of adjustment by turning the screw 24 slightly one way or the other.

Although I have shown and described one specific form of my invention, I am fully aware that many other modifications thereof and alterations therein are possible without departing from the spirit thereof. My invention, therefore, is not to be limited except insofar as is necessitated by the prior art and by the spirit of the appended. claims.

mounted in place on the I claim as my invention:

1. In a mounting for a glass pane, a pair of cooperable clamping members, a flange on one of said clamping members extending toward the other of said clamping members, said flange having an opening therein, and means on said other clamping member adapted to engage said opening to draw said clamping members into glass clamp= ing relation.

2. In a mounting for a glass pane, a front clamping member, a back clamping member, a rearwardly extending flange on said front clamping member, said flange having an opening therein, and means on said back clamping member adapted to engage said opening to draw said clamping members into glass clamping relation.

3. In a mounting for a glass pane, a front clamping member, a back clamping member, a rearwardly extending flange on said front clamping member, said flange having an opening therein, and vertically movable means on said back clamping member adapted to engage the back edge of said opening to draw said clamping members into glass clamping relation.

4. In a mounting for a glass pane, apair-of cooperable clamping members, a flange on one of said clamping members extending toward the other of said clamping members and having an opening therein, a cam surface on said other clamping member, and means on said other clamping member adapted to engage said open ing and to cooperate with said cam surface to draw said clamping members into glass clamping relation.

5. In a mounting for a glass pane, a front clamping member, a back clamping member, a rearwardly extending flange on said front clamping member having an opening therein, a cam surface on said back clamping member, and means on said back clamping member adapted to engage said opening and to cooperate with said cam surface to draw said front clamping member into glass clamping relation with said back clamping member.

6. In a mounting for a glass pane, a front clamping member, a back clamping member, a rearwardly extending flange on said front clamping member having an opening therein, a cam surface on said back clamping member, and vertically movable means on said back clamping member adapted to engage said opening and to cooperate with said cam surface to draw said front clamping member into glass clampingrelation with said back clamping member.

'7. In a mounting for a glass pane, a front clamping member, a back clamping member including a cam surface, a rearwardly extending flange on said front clamping member having an opening therein, a block swivelly mounted on said back clamping member, and a vertically movable member carried by said block, said vertically movable member being adapted to engage the rear edge of said opening and to cooperate with said cam surface to draw said front clamping member into glass clamping relation with said back clamping member.

8. In a mounting for a glass pane, a front clamping member, a back clamping member including a cam surface, a rearwardly extending flange on said front clamping member having an rear edge of said opening-.andto bear against said gs cam surface whereby, as said screw is advanced in said block, said cam surface and screw cooperate to draw said front clamping member into glass clamping relation with said back clamping member.

9. In a mounting fora glass pane, a front clamping member, a back clamping member including a cam surface extending downwardly away from said front clamping member, a rearwardly extending flange on said front clamping member having an opening therein, a threaded block having a. pair of oppositely extending pins thereon, said back clamping member being provided with an aperture in the uppermost portion thereof for receiving said block and with apertum-communicating recesses for receiving said pins whereby said block is adapted to be swivelly mounted on said back clamping member, and a screw threaded in said block and movable vertically therein, said screw being adapted to engage the rear edge of said flange opening with the lowermost end thereof bearing against said cam surface whereby, as said screw is advanced in said block, said cam surface and said screw cooperate to draw said front clamping member into glass engaging relation with said back clamping member.

10. The invention set forth in claim 9 characterized in that said cam surface terminates in a surface for supporting said flange and characterized further in that said supported flange itself constitutes a support for the glass pane.

HARRY E. NAISULER. 

